Improvement in the manufacture of axle-boxes



forming axle-boxes for vehicles.

' dies come togetherpreferably before.

UNITED STATES PATENT CFFIGE.

GILBERT A. MORSE, OF PLANTSVILLE, ASSIGNOR OF ONE-HALF HIS RIGHT TO THEDALZELL & IVES WROUG OONNEUTIO UT.

HT BOX COMPANY, OF NEW HAVEN,

IMPROVEMENT IN THE MANUFACTURE OF AXLE-BOXES.

. Specification forming part of Letters Patent N 0. 187,722, datedFebruary 27, 1877 application filed November 29, 1876.

To all whom it may concern Be it known that I, GILBERT A. MORSE, ofPlantsville, in the county of Hartford and State of Connecticut, haveinvented certain new and useful Improvements pertaining to Dies andPunches for Axle-Boxes, of which the following is a specification,reference being had to the accompanying drawings, where Figure l is aview of the face of one of the two dies which form the first set,showing the punch or plunger entered to the full length, with a smallpart of the plunger in section. Fig. 2 is a view of the face of one ofthe two dies which form the second set, showing the plunger entered tothe full length.

These are dies and punches or plungers for They are partible dies, andare intended to form up axleboxes from wrought-iron pipesuch asgastubing.

The letter a'denotes one of two duplicate dies which form the first set,with a slight taper from a to a in both dies and plunger, so as tosimilarly taper the pipe or axle-box; The die and its fellow cometogether in proper machinery, and the properly-heated pipe, of a lengthsomewhat greater than the length of the die, so as to give the requisiteamount of stock for the upsetting required, may be introduced into thematrix before or after the From the point a the die has a regular flareto the mouth a In this flare are the cutaways b, to commence theformation of the nibs, which generally appear on the outsidesofaxle-boxes. The plunger 0, when fully entered, passes fully throughthe length of thedie, and out of the opposite end, the shoulder apreventing the stock from doing the same. That part of the punch whichis within the flared mouth of the die rises by two swells, b b, till itpasses out of the die, andwhere these swells end the punch bears aflange, [1 forming a cup, which catches the'end of the stock-pipe, andprevents its escape from the proper action of the punch. The letter ddenotes one of the two duplicate dies which form the second andfluishing set. This die differs from the die a by being regular, insteadof flared, in shape from d to d by the shape of theflare from d to 0F,and by having the cutaways e farther down at the point where the nibsbelong on the finished box. The punch f for this second set difiers fromthe punch c by having, in place of the two swells, theregularly-cylindrical enlargements f f and by not having the flange 12At the upper or month end of die at is an annular recess, 6, to take upany small excess of stock. The product of the first set of dies isfinished in the second set.

I am aware that previous to my making this invention a patent or patentshave been granted for solid dies and punches for forging axle-boxes fromtubing, and I make no claim, broadly, to such dies and punches orprocess, and to no dies and punches which do not have certaindistinctively new features shown in the dies and punches hereindescribed, to wit: first, lengthened partibility of the dies, so thattheir side clamping motion may avail to form the main body of the box toa taper; second, a punch going entirely through the dies, so as tosupport the body of the tubing from collapsing or bending inward whenthe tubing is under process of upsetting at the end, and also forming aresisting medium for the inside of the tubing, to give taper shape tothe inside of the tubing, and to prevent the tubing from being bentinward irregularly under the side clamping action of the dies; third, apunch so constructed that its follower part does not. enter the mouth ofthe die.

I claim as my invention Jointly, the two sets of partible dies andpunches for forming axle-boxes, substantially as shown and described.

GILBERT A. MORSE. Witnesses:

RoB'r. F. GAYLORD, W. E. Snuonns.

